Historical Advisory Council, stated that "Because the Foreign Relations series serves as the primary venue for publishing documentation on the role of intelligence activities in U.S. foreign relations, it has become renowned internationally for its openness. This universal acclaim well serves America’s national interest," but added, "This barometer of openness, however, has created substantial delays in the declassification and publication processes over which HO has limited control." To that end, N. Richard Kinsman has cited "serious, cumulative, and long-term deleterious effects on the Agency as a result of specific citations by name to CIA in the FRUS" and that "Explicit FRUS citations of CIA activities in specific countries constitute de facto admission of a CIA presence abroad, a direct contradiction of current policy to deny an official CIA presence abroad." Warren F. Kimball in rebuttal cited the unlikelihood of documents 30+ years old after being properly vetted prior to publication posing any risk. The series has been frequently criticised for omitting mention of controversial US foreign policies, due to limitations on the declassification of historical documents. In the late 1980s and early 90s, growing concerns over the accuracy of the series's coverage of the Cold War era led to a 1991 Congressional statute to provide the series with a legal mandate for timeliness and comprehensiveness. Incidents alleged to be omitted or censored include the United States government's covert involvement in the 1953 Iranian coup d'état, the 1954 Guatemalan coup d'état, the 1960 assassination of Patrice Lumumba, and the Indonesian mass killings of 1965–66. References External links About the Foreign Relations of the United States Series Complete List of FRUS Volumes Status of the series Research on the Sesquicentennial of the Foreign Relations series Pre-1955 FRUS available and searchable on-line via the University of Wisconsin Archived version before (January 20, 2001) Collections of treaties Series of books Classified documents United States Department of State publications